1.7.20 EQUATION VS EXPRESSION

Front

What is the difference between an equation and an expression?

Back

An equation is a mathematical statement that asserts the equality of two expressions, while an expression is a combination of numbers, variables, and operators without an equality sign.

Front

What does the associative property state?

Back

The associative property states that the way in which numbers are grouped in addition or multiplication does not change their sum or product.

Front

Can you give an example of the associative property in addition?

Back

(2 + 3) + 4 = 2 + (3 + 4) = 9.

Front

Can you give an example of the associative property in multiplication?

Back

(2 × 3) × 4 = 2 × (3 × 4) = 24.

Front

What is the result of the expression 8 - 3 × 2 + (12 - 1 + 2)?

Back

The result is 15.

Front

What is the order of operations used to solve expressions?

Back

The order of operations is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right), often abbreviated as PEMDAS.

Front

What role do parentheses play in mathematical expressions?

Back

Parentheses indicate which operations should be performed first in an expression.

Front

Is the statement 'The associative property allows you to add or multiply in any order' true or false?

Back

True.

Front

What is an example of an expression?

Back

An example of an expression is 3x + 5.

Front

What is an example of an equation?

Back

An example of an equation is 3x + 5 = 11.